Inventor · disambiguated record
Yoshizumi Nishimura
Also filed as: NISHIMURA YOSHIZUMI
9 granted patents·145 citations·filing 1998–2001
89Inventor score
Files withHITACHI CONSTRUCTION MACHINERY9
Top patents by PatentIndex Score
9 records- 0186US6408876B1Control valveHITACHI CONSTRUCTION MACHINERY·Filed 1999·Granted Jun 25, 2002·35 cites·6 claims
- 0282US6438952B1Hydraulic circuit deviceHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Aug 27, 2002·22 cites·6 claims
- 0377US6422009B1Pump capacity control device and valve deviceHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Jul 23, 2002·18 cites·8 claims
- 0477US6378302B1Hydraulic circuit systemHITACHI CONSTRUCTION MACHINERY·Filed 2000·Granted Apr 30, 2002·17 cites·8 claims
- 0563US6327959B1Directional control valve deviceHITACHI CONSTRUCTION MACHINERY·Filed 1999·Granted Dec 11, 2001·23 cites·3 claims
- 0656US6453585B1Hydraulic drive device of working machineHITACHI CONSTRUCTION MACHINERY·Filed 2001·Granted Sep 24, 2002·9 cites·5 claims
- 0755US5957159ADirectional control valve with flow distribution valvesHITACHI CONSTRUCTION MACHINERY·Filed 1998·Granted Sep 28, 1999·12 cites·10 claims
- 0845US6135149APressure compensating valvesHITACHI CONSTRUCTION MACHINERY·Filed 1999·Granted Oct 24, 2000·8 cites·3 claims
- 0944US6681794B2Unloading valveHITACHI CONSTRUCTION MACHINERY·Filed 2001·Granted Jan 27, 2004·1 cites·5 claims
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